Subtract 4/36 from 8/45
8/45 - 4/36 is 1/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
8/45 = 8 × 4/45 × 4 = 32/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
4/36 = 4 × 5/36 × 5 = 20/180 - Subtract the two like fractions:
32/180 - 20/180 = 32 - 20/180 = 12/180 - After reducing the fraction, the answer is 1/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45-4/36 8/45-8/36 8/90-4/36 8/45-4/72 24/45-4/36 8/45-12/36 40/45-4/36 8/45-20/36 56/45-4/36 8/45-28/36